{"product_id":"castair-1-4-npt-2-5-dial-0-300-psi-back-mount-pressure-gauge-g251430b","title":"Castair 1\/4\" NPT 2.5\" Dial 0-300 PSI Back Mount Pressure Gauge G251430B","description":"\u003cp\u003eThe \u003cstrong\u003eCastair G251430B\u003c\/strong\u003e is a 1\/4-inch NPT back-mount pressure gauge with a 2.5-inch dial face, reading 0 to 300 PSI. Priced at $14.40, this is the high-pressure, large-dial gauge in the Cast Air gauge lineup — the 2.5-inch face is easier to read across a shop floor, and the 300 PSI range covers higher-pressure compressor systems as well as standard shop air with substantial headroom.\u003c\/p\u003e\n\u003cp\u003eHigh-pressure compressor systems — units running two-stage compression to 200-300 PSI — need gauges rated for the higher working pressure. Standard 0-160 PSI or 0-200 PSI gauges are not appropriate for these applications. The G251430B is the correct gauge when you need to monitor supply pressure in the 150-300 PSI range with a large, clear dial that is readable from across the compressor room.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e1\/4 inch NPT connection\u003c\/strong\u003e — standard port thread for compressor tanks, manifolds, and pressure switches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBack-mount configuration\u003c\/strong\u003e — port exits from the rear for panel or bracket mounting\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.5-inch dial\u003c\/strong\u003e — the largest dial in the Cast Air gauge lineup; readable from across the shop\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e0-300 PSI range\u003c\/strong\u003e — suitable for high-pressure two-stage compressor systems and standard shop air\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGenuine Cast Air replacement component\u003c\/strong\u003e — matched to Cast Air high-pressure system specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e G251430B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnection:\u003c\/strong\u003e 1\/4 inch NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMount:\u003c\/strong\u003e Back mount\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDial Size:\u003c\/strong\u003e 2.5 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e 0-300 PSI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen Do You Need a 0-300 PSI Gauge?\u003c\/h3\u003e\n\u003cp\u003eTwo situations: first, you are running a high-pressure compressor (two-stage units rated above 200 PSI) and your supply line gauge must be rated above working pressure. Second, you have a standard 150-175 PSI system but want the larger dial for better visibility — the 0-300 PSI gauge gives you a bigger face and the needle still reads in a comfortable mid-scale position at 150 PSI. Running a 0-160 PSI gauge at 150 PSI keeps the needle pegged near full scale, which is poor practice and hard on the gauge internals.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-pressure two-stage compressor tank and line monitoring\u003c\/li\u003e\n  \u003cli\u003eLarge-dial replacement on standard shop compressor installations\u003c\/li\u003e\n  \u003cli\u003ePanel-mounted supply pressure indicator in high-visibility installations\u003c\/li\u003e\n  \u003cli\u003eIndustrial compressed air systems with working pressures above 175 PSI\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy From OEM Diagnostic Tools?\u003c\/h3\u003e\n\u003cp\u003eWe have been supplying compressed air components since 2016. We stock the full Cast Air gauge lineup and can help you select the correct dial size, mount type, and pressure range for your application. Free shipping, full warranty, tech support at 866-217-0063.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCall 866-217-0063 for quick answers and help!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Cast Air","offers":[{"title":"Default Title","offer_id":53342552064213,"sku":"G251430B","price":26.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8466\/0949\/files\/cacg.4_24ec580a-391c-430c-9563-2e8c553e4f0c.jpg?v=1772652692","url":"https:\/\/aircompressorfactorydirect.com\/products\/castair-1-4-npt-2-5-dial-0-300-psi-back-mount-pressure-gauge-g251430b","provider":"Air Compressor Factory Direct","version":"1.0","type":"link"}